What does encryption algorithm actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

Researchers found that an encryption algorithm likely used by law enforcement and special forces can have weaknesses that ...

The rotor-cipher machine Another early instance of a side-channel attack occurred in 1965 when the British MI5 agency attempted to crack a cipher used by the Egyptian Embassy in London.

Above that, there was a series of configurable rotors that were the key to the Enigma's encryption capability. First, let's look at just one rotor. One side had electrical contacts for all 26 letters.